Find the value of this expression
(50 - 2) ÷ 4 - 7²

-40
-41
-37

Answers

Answer 1

Answer:

The answer is -37.

Step-by-step explanation:

1) Simplify 50-2 to 48.

48 ÷ 4 - [tex]7^{2}[/tex]

2) Simplify [tex]7^{2}[/tex] to 49.

48 ÷ 4 - 49

3) Simplify 48 ÷ 4 to 12.

[tex]12 - 49[/tex]

4) Simplify.

[tex]-37[/tex]

Therefor, the answer is Option C) -37.


Related Questions

what's is m when u are looking for x or y intercept​

Answers

Answer:

Slope.

Step-by-step explanation:

mx+b

Answer:

Slope

Step-by-step explanation:

The equation of lines are normally formatted in "slope-intercept form"

(y = mx + b)

The b in the equation would be the y-intercept of the line.

The m represents the slope.

The x and y can be replaced with any x and y value from the line (if necessary)

The population of San Francisco was 776,733 in the 2000 United State Census, if the expected growth rate is 15%,
which is the best prediction of what the population of San Francisco will be in 2015?

Answers

Answer:

initial pop'n=776733

growth rate=15%

time= 15years

Then,

Pt= P(1+G/100)^t

776733(1+15/100)^15

6320324.2904 Ans


Ana marked 15% of the e-mails in her Inbox as Important. If she has 180 e-mails in her Inbox, how many did she mark as Important?
A n=0.15/180
B 180n = 0.15
C 0.15n = 180
D n=0.15(180)

Answers

the answer is b
i tried my best to answer

Need Help!!!!!!!!! 20 Points!!! Brainly for best and CORRECT answer!!!

Please solve the triangle (in the picture below)

HURRY!!!!!!!!!!!!!

Answers

Answer:

Side lengths:

AC. 10.009

AT. 22.91

CT. 25

Angles:

<bc. 23.6

<ac. 66.4

Step-by-step explanation:

Hope that this is what you need!

In a maths class the girl to boy is 7:5 If there are 20 boys how many girls are in the class

Answers

Answer:

Let the total no of girls be x

the number of boys=7:5

total no of students =20

now,

no of girls =7/5=x/20

or, 20*7=5x

or 140=5x

or,x=140/5=28

therefore the number of girls =28

5x4=20 boys
So that means
7x4=28 girls

A publisher sells 10 to the power of 6 copies of a new book.
Each book has 10 to the power of 2
pages.
How many pages total are there?

Answers

Answer:

100,000,000

Step-by-step explanation:

10^6= in this case, just add 5 zeros to the 10. each zero multiplies the number by 10

1000000 books

10^2 pages per book- 100 pages

1,000,000 x 100= 100,000,000

20 ft
12 ft
5 ft
Find the area of the polygon.
A)
125 ft?
B)
140 ft?
09
165 ft?
D)
345 ft?

Answers

Answer:

a

Step-by-step explanation:

im smart like im reallysmart so just trust

Answer:

C)165 ft2................

A plane travels 3400 miles in 8 hours. How far would it travel in 6 hours at this rate? What is the Unit Rate: Write the equation: How far will the plane travel in 6 hours: (disance in miles)

Answers

The plane will go 2550 miles in 6 hours the unit rate is miles per hour

Answer:

Unit rate 425 miles/hr, equation: m = 425h, in 6 hours plane will travel 2550 miles

Step-by-step explanation:

Set up a proportion, so 3400/8 = x/6 so x = 2550

Plz help me I need this stuff plz

Answers

sorry i want get points

What is the missing polynomial ?-(20-4x5x^2)=20-7x^2

Answers

Answer: [tex]-2x^2-4x+40[/tex]

Step-by-step explanation:

Suppose the missing polynomial be f(x)

So, we can write

[tex]\Rightarrow f(x)-(20-4x+5x^2)=20-7x^2\\\Rightarrow f(x)=20-7x^2+(20-4x+5x^2)\\\Rightarrow f(x)=-2x^2-4x+40[/tex]

Given isosceles right triangle CDE with m∠D = 90, sin C = sin D

Answers

Answer:True

Step-by-step explanation:

Given

[tex]\angle D=90^{\circ}[/tex]

For isosceles triangle , CD=DE (x=y)

from figure,

[tex]\sin C=\dfrac{y}{H}\\\\\sin D=\dfrac{x}{H}\\\\\text{CD=DE}\\\\\therefore \sin C=\sin D=\dfrac{x}{H}=\dfrac{y}{H}[/tex]

Thus, the given statement is true

what is 11/9 simplified

Answers

Answer:

as a mixed number 1 2/9

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

Answer:

72

Step-by-step explanation:

Just multiply all them

Solve for x in the following:​

Answers

Answer:

[tex] \boxed{\boxed{ \red{\: x = \begin{cases} \frac{\pi}{8} + 7 + \frac{k\pi}{2} \\ - 6 + \frac{\pi}{12} + \frac{k\pi}{3} \end{cases}}}}[/tex]

Step-by-step explanation:

to understand thisyou need to know about:trigonometry equationPEMDAStips and formulas:[tex] \cos(t) = \sin( \frac{\pi}{2} - t ) [/tex][tex] \sin(t) - \sin(s) = 2 \cos( \frac{t + s}{2} ) \sin( \frac{t - s}{2} ) [/tex]let's solve:[tex] \sf use \: first \: formula : \\ \sin(5x + 4) = \sin( \frac{\pi}{2} - (5 x + 4) )\\ \sin(5x + 4) = \sin( \frac{\pi}{2} - 5 x - 4) \\ [/tex][tex] \sf move \: the \: expresson \: to \: left \: side \: and \: change \: the \: sign : \\ \sin(5x + 4) - \sin( \frac{\pi}{2} - 5 x - 4) = 0\\ [/tex][tex] \sf use \: 2nd \: formula : \\ 2 \cos( \frac{8x - 56 + \pi}{4} ) \sin( \frac{12x + 72 - \pi}{4} ) = 0[/tex][tex] \sf divide \: both \: sides \: by \: 2 : \\ \cos( \frac{8x - 56 + \pi}{4} ) \sin( \frac{12x + 72 - \pi}{4} ) = 0[/tex][tex] \sf separate \: the \: equation: \\ \cos( \frac{8x - 56 + \pi}{4} ) = 0 \\ \sin( \frac{12x + 72 - \pi}{4} ) = 0[/tex]

therefore

[tex] \therefore \: x = \begin{cases} \frac{\pi}{8} + 7 + \frac{k\pi}{2} \\ - 6 + \frac{\pi}{12} + \frac{k\pi}{3} \end{cases}[/tex]

Are you looking for surface are or volume?
A cylindrical fire extinguisher has a diameter of 9 centimeters and a height of 30 centimeters. What is the maximum amount of carbon dioxide that it can contain?

Answers

Answer:

It the volume

Step-by-step explanation:

Answer:

the answer is 1908.52

Step-by-step explanation:

last week, the thickness of the ice on a lake increased by (25)/(t+3) centimeters per day (where t is the number of days since the ice first formed). By how may centimeters did the thickness of the ice increase between t=0 and t=4?

pls help :)

Answers

The answer is b I hope this helps :)

y


x

If
y
=
45
when
x
=
81
find,
y
when
x
=
225

Answers

Answer:

y = 75

Step-by-step explanation:

Given that:

   y [tex]\alpha[/tex] [tex]\sqrt{x}[/tex]

⇒ y = k[tex]\sqrt{x}[/tex]

where k is the constant of proportionality.

When y = 45, x = 81, then;

45 = k[tex]\sqrt{81}[/tex]

45 = 9 k

k = [tex]\frac{45}{9}[/tex]

  = 5

k = 5

So that,

y = 5[tex]\sqrt{x}[/tex]

the value of y when x = 225 is;

y = 5[tex]\sqrt{x}[/tex]

  = 5 x [tex]\sqrt{225}[/tex]

  = 5 x 15

y = 75

ill mark brainlist plss help

Answers

Answer:

2800 ft

Step-by-step explanation:

I believe the answer is A) 1,800ft if not please let me know so I can correct myself I hope this helps

what is a ratio that compares quantities with unlike units of measures

Equivalent Ratios
Unit
Unit Price
Rate
Ratio
Ratio table
Terms

Answers

The answer would be rate
the asnwer would be rate

Guided Practice


Find the distance you can see to the horizon from a height of 100 feet. Use the formula d = 1.5h⎯⎯⎯⎯⎯⎯⎯√ to approximate the distance d in miles to a horizon when h is the height in feet of the viewer's eyes above the ground. Round your answer to the nearest mile.


A.
12 mi


B.
10√1.5 mi


C.
13 mi

Answers

Answer:

A. 12 mi

Step-by-step explanation:

A.

12 mi

d===≈≈1.5h⎯⎯⎯⎯⎯⎯⎯√1.5•100⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯√150⎯⎯⎯⎯⎯⎯√12.24712

The distance to the horizon is about 12 miles.

Miranda le debe $120.00 a max .Le paga 30% de lo que le debe ¿cuanto le falta pagarle?

Answers

Answer:

84

Step-by-step explanation:

el 10% de 120= 12. 120-12= 108

el 20% de 120=24. 120-24=96

el 30% de 120=36. 120-36=84

el 40% de 120=48. 120-48=72

el 50% de 120=60. 120-60=60

84 is the answer. Yes 84 is the answer

please please help i need a better grade

Answers

Answer:

The first one is (-3,2)

The second one is (3,4)

The third one is (1,-1)

The last one is (-4,-4)

I HOPE THIS BRINGS UP YOUR GRADE! :)

please help!! this is due in a few minutes giving brainlest if explained!!

Lily has a sandbox that holds colored sand. The dimensions of the
sandbox are as follows: length = 3 3/4 ft.,width =4 ft and the height is 11/12 ft. What is the volume of the box? Your answer should be in decimal form.

Answers

Answer:

13.75ft^3

Step-by-step explanation:

11/12 * 3 1/4 * 4= 13.75

round this pls and get the answer 100 point btw don't answer if you don't know i really need this done assp

Answers

Answer:

Step-by-step explanation:

A, B, D

Answer:

A,B,D

Step-by-step explanation:

i hurry i need help asap

Answers

It is the first chart

Solve the linear equation x - 9= 3/5x
(Please put your answer as a decimal.)

Answers

Answer:

22.5

Step-by-step explanation:

Answer:

x = 22.5

Step-by-step explanation:

x - 9= 3/5x

3/5x - x = -9

-2/5x = -9

x = 22.5

What is the answer?, help me.

Answers

Answer:

128

Step-by-step explanation:

length*depth*height=Volume

8         * 4       * 4 =V

8*4*4=V

8*16=V

128=V

Tell which term you would add or subtract on both sides side of the equation so that the variable is only on one side.
7X – 1 = 2x + 5

Answers

Answer:

x=6/5

Step-by-step explanation:

Solve for T

7/3 = 4/t

Answers

Multiply both sides by 4, to get t alone and whatever 7/3 times 4 equals is what t is

math question please help

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Hello There!

First things first, we should find the rate of change / slope

given two points we can find the slope by using the slope formula which is

(let m be slope)

[tex]m = \frac{y_2-y_2}{x_2-x_2}[/tex]

To find the slope all we have to do is plug in the points

(1,5),(2,10)

remember the first numbers in an ordered pair are the x values and the second numbers are the y values

we also plug in the points of the second ordered pair first so

[tex]m=\frac{10-5}{2-1} \\10-5=5\\2-1=1\\m=\frac{5}{1} or5[/tex]

Knowing the slope we can create an equation to find the x value (a)

y=5x

given the y value we plug in y and solve for x

15=5x

divide each side by 5

15/5=3

5x/5=x

we're left with

x=3

so we can conclude when y =15 x = 3 therefore 3 is your answer

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